Shoulder and Collarbone Injuries in Football

By 4Football Staff · October 14, 2026 · 10 min read

How the shoulder is built, the main injuries football players suffer there, from separations to broken collarbones and stingers, and what prevention and recovery involve.

A receiver catches a pass over the middle, a safety arrives and the receiver lands hard on the point of his shoulder. He gets up holding his arm against his chest. On the broadcast, the announcer says he has a "separated shoulder." On the next play, someone else says it is a broken collarbone. A third commentator wonders about a dislocation. All three are real injuries, they involve different structures, and they do not mean the same thing.

The shoulder is the most mobile joint in the body, and in football it is also one of the most exposed. Tackling, blocking, falling and being driven into the ground all load it. Understanding the basic anatomy makes it much easier to follow what an injury report means and to know what to do when a teammate or a child goes down holding an arm.

This article is general education, not diagnosis or treatment advice. A shoulder or collarbone injury should be evaluated by an athletic trainer or physician, and decisions about surgery, rehabilitation and return to play belong to them.

How the shoulder is put together

What people call "the shoulder" is actually several bones and joints working together.

• The collarbone, or clavicle, is the long, slightly curved bone running from the breastbone at the center of the chest out to the top of the shoulder. It acts as a strut that holds the arm away from the body.
• The shoulder blade, or scapula, is the flat bone on the back of the rib cage. It has a bony top edge that forms part of the shoulder joint.
• The upper arm bone, or humerus, ends in a ball that fits into a shallow socket on the shoulder blade. This is the main shoulder joint.
• The acromioclavicular joint, usually shortened to AC joint, is where the outer end of the collarbone meets the top of the shoulder blade. It is the bump you can feel on top of your shoulder.

Around these bones are ligaments that connect them, a rim of cartilage called the labrum that deepens the socket, and a group of four muscles and tendons known as the rotator cuff that hold the ball in the socket and rotate the arm. The shoulder gets its huge range of motion by having a shallow socket, which also makes it easier to injure than a deep joint like the hip.

The most common injuries

AC joint sprain (separated shoulder)

When a player lands directly on the point of the shoulder, the force pushes the shoulder blade down and away from the collarbone and stretches or tears the ligaments of the AC joint. This is commonly called a separated shoulder, and it is not the same as a dislocated shoulder.

Doctors often describe these injuries in grades or types, from a mild sprain with a stretched ligament, to partial and complete tears, to the most severe injuries in which the collarbone is displaced visibly from its normal position. A bump on top of the shoulder may appear when the ligaments are torn. The mildest grades usually recover with rest, protection and rehabilitation. More severe grades are sometimes treated with surgery, and this is a decision for an orthopedic physician that depends on the athlete, the position played and the extent of the injury.

Shoulder dislocation

A dislocation means the ball of the upper arm bone has come out of its socket. This most often happens when the arm is forced out and back, for example when a defender reaches to wrap up a ball carrier and the arm is yanked. The shoulder looks squared off or misshapen, it hurts severely and the player cannot move the arm normally.

A dislocated shoulder should not be forced back into place on the sideline by someone without training. A medical professional should do that, often after an examination and sometimes imaging. After a first dislocation, athletes, particularly young ones, have a notable chance of dislocating again, which is one reason physicians and therapists pay close attention to rehabilitation and sometimes discuss surgery to stabilize the joint.

Labrum tears

The labrum, the rim of cartilage around the socket, can tear when the shoulder dislocates or when the arm is loaded repeatedly in awkward positions. Symptoms include pain, a catching or clicking sensation and a feeling that the shoulder is unstable. Diagnosis often involves imaging, and treatment ranges from rehabilitation to surgery depending on the findings.

Rotator cuff injuries

The rotator cuff muscles and tendons can be strained, irritated or torn. In football, they are most often injured by falls, by heavy collisions or by repeated overhead use, which is why quarterbacks and linemen can have rotator cuff problems that build up over time. Pain with lifting the arm overhead or lying on that side is a common sign.

Broken collarbone

The collarbone is one of the most commonly broken bones in contact sports. It usually breaks when a player falls onto the shoulder or onto an outstretched arm, or takes a direct blow. A player with a broken collarbone often keeps the arm held close to the body, supports the elbow with the other hand and has pain, swelling and tenderness along the bone. In some cases the skin looks tented or a bump is visible.

Many collarbone fractures heal without surgery, with a period in a sling followed by gradual movement and strengthening. Some fractures, especially those where the bone ends have moved far apart or have pierced the skin, are treated surgically. As with other fractures in growing athletes, a physician who treats young patients should guide decisions. Younger players have bones that are still growing, and that changes how fractures are managed.

Stingers and burners

A stinger, also called a burner, is a brief burning or electric-shock pain that shoots down one arm, often with numbness, tingling or temporary weakness. It happens when the nerves that run from the neck to the arm, the brachial plexus, are stretched or compressed during a tackle. Most stingers last seconds to minutes and the symptoms fade.

But stingers deserve respect. A player who has any neck pain, numbness in both arms or legs, weakness that does not go away, or symptoms that last should be treated as potentially having a more serious neck injury and be evaluated right away. Never move a player with suspected neck trauma; call for emergency medical help. A team's emergency action plan exists for exactly this kind of situation.

Signs that a shoulder injury needs prompt attention

Most players with a sore shoulder do not need an ambulance, but certain signs should prompt a quick medical evaluation.

• The shoulder looks deformed, or there is an obvious bump or step in the collarbone.
• The player cannot lift or move the arm.
• There is numbness, tingling or weakness in the arm or hand.
• The skin over the collarbone looks pale, bluish, broken or tented.
• There is severe pain that does not ease with rest.
• The player also has neck pain, a headache or confusion after the hit.

If any of those are present, remove the player from play, support the arm in the position that is most comfortable, and get the athletic trainer or a physician. If a head or neck injury is possible, do not move the athlete and call emergency services. A hard hit that also affects the head calls for a concussion check, too.

The path to recovery

The details depend entirely on the injury, but the general stages of recovery are similar to those for other joint and bone injuries.

1. Protection. The arm is rested, sometimes in a sling, so the injured tissue can settle. How long depends on the diagnosis.
2. Pain and swelling control. The medical team manages symptoms and guides early gentle movement.
3. Restoring motion. Range of motion returns gradually, often in stages that the therapist prescribes. Stiffness is a real risk after prolonged immobilization.
4. Rebuilding strength. The rotator cuff and the muscles around the shoulder blade are strengthened, because they steady the joint.
5. Football-specific work. Players practice the movements the position demands, such as tackling, blocking, catching and throwing, at gradually increasing intensity.
6. Return to contact. Clearance for contact comes last and should come from a physician.

Timelines vary widely. Mild AC sprains may allow a quick return, while fractures and surgical repairs take months. Anyone who quotes you a specific timetable without examining the player is guessing. The injury reports of professional teams show how often shoulders appear, and how different the lengths of absence can be.

Prevention

Not every shoulder injury can be prevented, because some come from sheer force. But several habits lower the risk.

Tackling and falling technique

Many shoulder injuries happen when a player tackles with the arms outstretched and gets pulled or pushed backward, or when a player lands on the point of the shoulder or an outstretched hand. Teaching players to keep their head up, tackle with a wrapped arm and tuck and roll when falling, rather than stiff-arming the ground, reduces the loading on the shoulder. Our article on tackling technique and safe contact walks through the basics.

Strength and conditioning

A well-conditioned shoulder is better able to withstand stress. Strength programs commonly emphasize the rotator cuff, the muscles of the upper back and shoulder blade, and the chest and core, with balanced work for the front and back of the body. Coaches and strength staff should supervise form, since poor lifting technique can itself hurt the shoulder.

Equipment fit

Shoulder pads are designed to spread the force of impact and protect the collarbone and AC joint. Pads that are too small, too large or poorly adjusted do not do their job. Our article on shoulder pads and protective gear fit explains how to check the fit.

Warm-up and mobility

A good warm-up prepares the shoulder for contact with controlled arm movements, band work and gradual intensity. Our article on injury prevention, warm-ups and prehab lays out a routine.

Rest and workload

For quarterbacks, receivers and other players who throw or catch a lot, overuse is a risk. Managing throw counts, especially in younger players, and including rest days in the schedule helps protect the shoulder from irritation.

Misconceptions

"A separated shoulder and a dislocated shoulder are the same." They are not. A separation involves the ligaments at the top of the shoulder between the collarbone and shoulder blade. A dislocation means the ball has come out of the socket. They can happen together, but they are different injuries with different treatments.

"You can pop it back in yourself." A dislocated shoulder can injure nerves and blood vessels, and attempts by untrained people can make things worse. Get it treated.

"A collarbone always needs surgery." Many fractures heal without it. Others do need surgery. The physician decides.

"A stinger is nothing." Most are brief, but symptoms that persist or involve both sides need an immediate evaluation.

"Wearing a brace or harness prevents injury." Devices may limit motion in a healing joint. Whether they prevent a first injury is a question for medical professionals, and they do not replace strength and technique.

For fans, parents and fantasy managers

If you follow professional football, shoulder and collarbone injuries are among the common entries on the weekly injury report, and they range from a day or two of rest to long absences. A "shoulder" designation tells you little by itself, so look for details in coaches' updates and check the injuries page and the player's profile in the players section for status changes. Fantasy managers should remember that position matters: a quarterback's throwing shoulder is a different concern from a running back's non-throwing shoulder.

Parents of young players should look at the rules and training their child's program uses. The high school directory can help you find your school's athletic department and trainer if you want to ask about equipment fitting and injury response.

The short version

• The shoulder is several bones and joints: the collarbone, shoulder blade, upper arm bone and the AC joint where the collarbone meets the shoulder blade.
• A separated shoulder is an AC joint ligament injury; a dislocated shoulder is the ball leaving the socket; a collarbone fracture is a broken bone. They are three different injuries.
• Stingers are usually brief nerve pain down the arm, but persistent symptoms, neck pain or weakness need urgent medical evaluation.
• Never force a dislocated shoulder back in on the sideline, and never move a player with a possible neck injury.
• Recovery is staged from protection to motion to strength to football-specific work, and timelines vary widely.
• Good tackling and falling technique, shoulder and upper-back strength, properly fitted pads and a thorough warm-up all reduce risk.